Prenatal ultrasound findings and clinical outcomes of uniparental disomy: a retrospective study

Table 2 Indications for invasive prenatal diagnosis in 34 pregnancies with uniparental disomy

Indications for invasive prenatal diagnosis	n (%)
Ultrasound abnormalities	21 (61.8)
Parental genetic disease	3(8.8)
High risk result from maternal serum screening	2 (5.9)
Parental abnormal karyotype	2 (5.9)
Advanced maternal age	2 (5.9)
Previous adverse pregnancies	2 (5.9)
Rh-negative blood	2 (5.9)
Total	34 (100)

The cases were classified based on the most important indications for invasive prenatal diagnosis, and the order of importance is as follows: ultrasound abnormalities, high risk of maternal serum screening, parental abnormal karyotype, parental genetic disease, advanced maternal age, previous adverse pregnancies, and Rh-negative blood

ISSN: 1471-2393